/*
 * Copyright 1997-2008 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 *
 */

package forward.Libraries.javax.vecmath;

import java.awt.Color;

/**
 * A four-byte color value represented by byte x, y, z, and w values. The x, y,
 * z, and w values represent the red, green, blue, and alpha values,
 * respectively.
 * <p>
 * Note that Java defines a byte as a signed integer in the range [-128, 127].
 * However, colors are more typically represented by values in the range [0,
 * 255]. Java 3D recognizes this and for color treats the bytes as if the range
 * were [0, 255]---in other words, as if the bytes were unsigned.
 * <p>
 * Java 3D assumes that a linear (gamma-corrected) visual is used for all
 * colors.
 */
public class Color4b extends Tuple4b implements java.io.Serializable {

    // Compatible with 1.1
    static final long serialVersionUID = -105080578052502155L;

    /**
     * Constructs and initializes a Color4b from the four specified values.
     *
     * @param b1 the red color value
     * @param b2 the green color value
     * @param b3 the blue color value
     * @param b4 the alpha value
     */
    public Color4b(byte b1, byte b2, byte b3, byte b4) {
        super(b1, b2, b3, b4);
    }

    /**
     * Constructs and initializes a Color4b from the array of length 4.
     *
     * @param c the array of length 4 containing r, g, b, and alpha in order
     */
    public Color4b(byte[] c) {
        super(c);
    }

    /**
     * Constructs and initializes a Color4b from the specified Color4b.
     *
     * @param c1 the Color4b containing the initialization r,g,b,a data
     */
    public Color4b(Color4b c1) {
        super(c1);
    }

    /**
     * Constructs and initializes a Color4b from the specified Tuple4b.
     *
     * @param t1 the Tuple4b containing the initialization r,g,b,a data
     */
    public Color4b(Tuple4b t1) {
        super(t1);
    }

    /**
     * Constructs and initializes a Color4b from the specified AWT Color object. No
     * conversion is done on the color to compensate for gamma correction.
     *
     * @param color the AWT color with which to initialize this Color4b object
     * @since vecmath 1.2
     */
    public Color4b(Color color) {
        super((byte) color.getRed(), (byte) color.getGreen(), (byte) color.getBlue(), (byte) color.getAlpha());
    }

    /**
     * Constructs and initializes a Color4b to (0,0,0,0).
     */
    public Color4b() {
        super();
    }

    /**
     * Sets the r,g,b,a values of this Color4b object to those of the specified AWT
     * Color object. No conversion is done on the color to compensate for gamma
     * correction.
     *
     * @param color the AWT color to copy into this Color4b object
     * @since vecmath 1.2
     */
    public final void set(Color color) {
        x = (byte) color.getRed();
        y = (byte) color.getGreen();
        z = (byte) color.getBlue();
        w = (byte) color.getAlpha();
    }

    /**
     * Returns a new AWT color object initialized with the r,g,b,a values of this
     * Color4b object.
     *
     * @return a new AWT Color object
     * @since vecmath 1.2
     */
    public final Color get() {
        int r = (int) x & 0xff;
        int g = (int) y & 0xff;
        int b = (int) z & 0xff;
        int a = (int) w & 0xff;

        return new Color(r, g, b, a);
    }

}
